pgm -2
from OpenGL.GL import*
 from OpenGL.GLU import*
 from OpenGL.GLUT import*
 
 def init():
 glMatrixMode(GL_PROJECTION)
 glLoadIdentity()
 gluOrtho2D(0,100,0,100)
 glClearColor(1.0,1.0,0.0,0.0)
 glClear(GL_COLOR_BUFFER_BIT)
 
 def draw():
 #drawing separation lines
 glColor3f(0.5,0.5,0.5)
 glPointSize(10.0)
 glBegin(GL_LINES)
 glVertex2i(0,50)
 glVertex2i(100,50)
 glVertex2i(50,0)
 glVertex2i(50,100)
 glEnd()
 glFlush()
#triangle
 glColor3f(0.0,0.0,0.0)
 glPointSize(10.0)
 glBegin(GL_POLYGON)
 glVertex2i(10,10)
 glVertex2i(40,10)
 glVertex2i(25,40)
 glEnd()
 glFlush()
 
 #square
 glColor3f(0.0,0.0,0.0)
 glPointSize(10.0)
 glBegin(GL_POLYGON)
 glVertex2i(10,60)
 glVertex2i(40,60)
 glVertex2i(40,90)
 glVertex2i(10,90)
 glEnd()
 glFlush()
 #rectangle
 glColor3f(0.0,0.0,0.0)
 glPointSize(10.0)
 glBegin(GL_POLYGON)
 glVertex2i(55,65)
 glVertex2i(95,65)
 glVertex2i(95,85)
 glVertex2i(55,85)
 glEnd()
 glFlush()
 
 #hexagon
 glColor3f(0.0,0.0,0.0)
 glPointSize(10.0)
 glBegin(GL_POLYGON)
 glVertex2i(65,15)
 glVertex2i(85,15)
 glVertex2i(95,25)
 glVertex2i(85,35)
 glVertex2i(65,35)
 glVertex2i(55,25)
 glEnd()
 glFlush()
 def main():
 glutInit()
 glutInitWindowSize(500,500)
 glutCreateWindow(\"OpenGL Window\") 
 glutDisplayFunc(draw)
 init()
 glutMainLoop()